*{
    margin: 0;
    padding: 0;
}
body{
    width: 100%;
    height: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
header{
    width: 100%;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
}
header input{
    margin-right: 20px;
    color: #808080;
}